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Across 2. in a triangle a segment from a vertex of a triangle to the line containging the opposite side perpendicular to that side 4. a triangle with 2 sides of equal length 5. a triangle with a 90 degree angle (2 Words) 7. three or more lines that intersect at a common point (2 Words) 9. segment contained by a secant segment with an endpoint of the circle and at the fixed point outside the circle whose points all lie outside the circle (2 Words) 12. the point of concurrency of the perpendicular bisector of an angle 13. if 2 sides of one triangle are congruent to 2 sides of another triangle, then the 3rd side of the first triangle is longer then the 3rd side of the 2nd triangle (2 Words) 14. the point of intersection of concurrent lines (3 Words) 15. if 2 sides of a triangle are congruent to 2 sides of another triangle and the concluded angle in 1 has a greater measure then the angle in the outer, then the 3rd side of the first triangle is longer then the 3rd side of the second triangle (2 Words) 16. a proof in which one false assumption is made (2 Words) 18. the point of concurrency of the medians of a triangle 20. a statement about geometric figures that has been proved in the past, and can be accepted as the truth in the present without proof 21. a line, segment, or ray that passes through the midpoint of a side and is perpendicular to that side (2 Words) 22. A < B and a = b or A > B (2 Words) 24. a ray that divides an angle into 2 congruent angles (2 Words) 25. a segment within a triangle whose endpoints are midpoints of the sides of the triangle. every triangle as 3 midsegments 26. if A <B and B < C then A < C (2 Words) 27. a triangle whose interior angles are all acute

Down 1. the point of concurrency of the angle bisectors of a triangle 3. the sum of the lengths of any 2 side must be greater then the length of the remainging side (3 Words) 6. the longest side of a right triangle 8. a triangle with 2 equal sides 10. the two angles of an isosceles trapezoid whose vertices are the endpoints of the smaller base (3 Words) 11. an indirect proof in which one assumes that the statement to be proved is false. (3 Words) 17. the point of concurrency of all altitudes of a triangle 19. a line segment with end points that are a vertex of a triangle and the midpoint of the side opposite the vertex 23. a triangle that contains an obtuse interior angle